Anti-abortion (we can assume by being a ardent Roman Catholic)
Unfortunately that is flawed logic....look at brother Ted, Nancy Pelosi, John Kerry etc...all Catholics - at least in name- and all ardent of the right to kill the fetus right up until delivery!
And with his inability to keep it zipped JFK was probably responsible or half responsible for dozens of them personally.
Ted Kennedy was anti-abortion until after Roe v. Wade, prior to that he opposed it. I agree with 2banana, I would vote for JFK or any other Democrat with his views long before I would vote for McCain.
Let's not forget that JFK was the original taxcutter and I think it's a mistake to judge a politician based on their sibling's later positions (look how two of Reagan's kids turned out).